We report an operationally simple and safe method for the synthesis of N-monosubstituted sulfondiimines starting from stable sulfiliminium salts. This metal-free procedure employs a combination of iodine(III) reagents with iodine and 1,8-diazabicyclo[5.4.0]undec-7-en (DBU), providing particularly, S,S-dialkyl-substituted sulfondiimines in up to 85 % yield. Mechanistically, electrophilic nitrene cations
我们报道了一种操作简单且安全的方法,用于从稳定的
硫亚胺盐开始合成N-单取代磺二
亚胺。这种无
金属程序采用
碘(III)试剂与
碘和
1,8-二氮杂双环[5.4.0]undec-7-en (
DBU)的组合,特别提供了最多S,S-二烷基取代的磺二
亚胺85% 的收率。从机理上讲,亲电氮宾阳离子被认为是反应中间体。